News:

Welcome to the CRG Discussion Forum!Forum registration problems: Make sure you enter your email correctly and you check your spam box first. *Then* email KurtS2@gmail for help.Classified ads are not allowed on the forum.

Yes, for example JI40727 decodes to Oct of 69 J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...

Yes, for example JI40727 decodes to Oct of 69 J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...

OK,,, I've pretty much figured out that this is not the original on my '67 327 engine. I have this 280N40503 AC Delco pump. I've seen a couple places that offer this 40503 pump as a repop. pump for the 40727 and 40470. How does that date code read out?

Yes, for example JI40727 decodes to Oct of 69 J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...

OK,,, I've pretty much figured out that this is not the original on my '67 327 engine. I have this 280N40503 AC Delco pump. I've seen a couple places that offer this 40503 pump as a repop. pump for the 40727 and 40470. How does that date code read out?

I'm going to say 280th day of 1974. I noted previously in 71ish they started using the day instead of the month. Now could it be 1985? There are other things to look for to determine age, such as size of the AC and the weep hole configuration.

Yes, for example JI40727 decodes to Oct of 69 J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...

OK,,, I've pretty much figured out that this is not the original on my '67 327 engine. I have this 280N40503 AC Delco pump. I've seen a couple places that offer this 40503 pump as a repop. pump for the 40727 and 40470. How does that date code read out?

I'm going to say 280th day of 1974. I noted previously in 71ish they started using the day instead of the month. Now could it be 1985? There are other things to look for to determine age, such as size of the AC and the weep hole configuration.

Yes Steve, it could be 1985, and that probably would make more since as that is about the time the car was rescued out of an Apple orchard. And the coloring/plating is not all that bad.